Hoisting apparatus



31, 1935. w. LOOSCHEN 2,026,350

HOISTING APPARATUS Original Filed Jan. 21, 1951 IIIIII H II N III I[ATTORNEYS Patented Dec. 31, 1935 UNITED STATES PATENT OFFICE HOISTINGAPPARATUS John W. Looschen, Paterson, N. J.

Application January 21, 1931, Serial No. 510,139 Renewed June 5, 1935 3Claims.

a plurality of connections.

Another object is to provide a hand operated means for simultaneouslyactuating a plurality of suspending connections and for controlling themovement of the connections.

Another object is to provide means for rotating an element havingsecured thereto one end of each of the flexible connections spacedapart, which connections are adapted to be wound thereon for lifting aload suspended therefrom.

Another object is to provide certain improvements in the form,construction and arrangement of the several parts whereby the abovenamed and other objects may effectively be attained.

A practical embodiment of my invention is represented in theaccompanying drawing, in which Fig. 1 represents a detail side elevationof my improved hoisting apparatus, and the support therefor;

Fig. 2 represents a detail plan view on an enlarged scale of theactuating means removed from its support;

Fig. 3 represents a front elevation of the same, partly in section; and

Fig. 4 represents a side elevation of the same.

The apparatus is especially designed for use in connection with theraising and lowering of boats, canoes, or the like, in boat-houses orsheds so as to prevent the accumulation of marine growth and incipientrot, while idle, as well as damage to the craft due to banging andchafing against the dock, change of tides and storms.

The apparatus includes a rotatable element I, in the present instance,in the form of a hollow shaft suspended horizontally from a roof beam 2or other support of the boat-house (not shown) by means of eye bolts 3,4, and one end of the rotating element I is journaled in a hanger 5 alsosecured to the roof beam 2 by bolts 6. A plurality of flexibleconnections 1 are carried by the element I, and eachconnection has oneend secured to the element by a clamp 8, while the other end 9 isprovided with devices, such as hooks, slings or similar means forreceiving or carrying the load to be lifted. The element I is rotated bymeans of a hand lever I8 having a head II formed with arms I2, I3 whichare journaled on one end of a shaft I4 mounted to rotate in a bearing I5in thehanger 5. A ratchet wheel I6 is keyed to the shaft I4 between thearms I2, I3, and a spring actuated'plunger I1 is mounted in the head IIin position to engage the teeth of the ratchet wheel I8. This plunger I1may be withdrawn from its engagement with the teeth of the ratchetwheel, when desired, by means of a latch I8 pivoted at I9 on the handlever I0 and having a link 20, which is connected to the plunger I1 by apin 2I, which is arranged to move in a longitudinal slot 22 in the headII of the hand lever. ratchet wheel I6 against movement in onedirection, I provide a pawl 23, mounted to rock on a stud 24, fixed onthe hanger 5, and a spring 25, one end of which engages the hanger,while the other end coacts with the pawl 23 to hold 10 it in engagementwith the teeth on the ratchet wheel I8. This pawl 23 is moved out ofcontact with the teeth of the ratchet wheel by means of a rock lever 21mounted on. a stud 2B fixed in the hanger 5, the short arm 28 of whichlever 15 The shaft I4 is also provided witha friction 2o device in theform of a wheel 32 which is keyed to the shaft and a band 33 whichsurrounds the wheel so that one end 34 may be fixed to a lug 35 on thehanger 5, while the other end 38 is adjustably secured to the short arm28 of the lever 25 21. The end 36 of the band is adjustably secured tothe short arm by means of a pin 31 which is arranged to pass through anelongated slot 38 in the lug 35 and project through a hole 39 in theshort arm 28. The upper end of this 0 pin 31 is screw threaded andarranged to receive nuts 48, M for adjusting the frictional contact ofthe band 33 and wheel 32 with respect to the movement of the shortarm 28of the lever 21.

Motion is transmitted from the shaft I4 to the 35 rotating element I bymeans of a pinion 42 fixed to the shaft I4 by a pin 43 and meshing witha gear 44 pinned at 45 to the rotating element I. g

In order to raise the load or wind the flexible connection on therotatable element I, the hand 40 lever II) is moved arcuately from theright to the left, as indicated by the arrow marked A. This movement ofthe lever will cause the plunger I1 to engage the teeth on the ratchetwheel I8 and rotate it, thereby rotating the shaft I 4, wheel 45 32 andpinion 42, which in turn meshes with the gear 44 and actuates theelement I. As the ele-. ment I is rotated each of the flexibleconnections 1, by reason of having one end fixed to the rotatingelement, will be caused to be wound 50 thereon and raise the load. Whenthe hand lever is moved to the limit of its movement to the left, thepawl 23 will automatically engage the teeth on the ratchet wheel I6 andhold the load, so that the hand lever may be returned to its normal 55position or to the right. In this movement of the hand lever to theright, the plunger I1 will slip idly' over the teeth until its directionof travel is reversed, whereupon the movement of the parts will berepeated as previously described. 60 7,

As a means of locking the 5 When it is desired to lower the load, thehand lever I is moved to the position shown in dotted outline in Fig. 3,where the plunger I! will engage the teeth on the ratchet wheel I6 and,by a slight movement of the hand lever, the ratchet wheel may be movedsufficiently clockwise so that the pawl 23 can be readily removed fromthe teeth of the ratchet wheel by a downward movement of the rope 3| onthe long arm 30 of the lever 2'1. The rocking movement of the lever 21causes the short arm 26 to engage the lug 29 of the pawl 23 and lift thepawl free of the teeth of the ratchet wheel I6. Simultaneously with theupward movement of the short arm 28, the band 33 is brought into contactwith the wheel 32 to hold the shaft I4 against rotation. While the partsare in this position the movement of the rotating element is controlledby the movement of the hand lever, so that by slightly releasing thedownward pull on the rope 3|, the band 33 will release the wheel 32 andallow the shaft I4 to rotate with the movement of the hand lever towardthe right.

It will be understood that when the load is placed upon the flexibleconnections I, the torsional effect will be passed from the element Ithrough the gear 44 to the pinion 42 and hence through the shaft I4 tothe ratchet wheel I6, so that the element I is limited in its movementby the movement of the hand lever.

When the hand lever has been moved to its position to the right, thepawl 23 may again be allowed to engage the teeth on the ratchet wheel I6by releasing the downward pull on the rope 3|, which in turn allows thelever 21 to rock on its pivot 26 and move the short arm 28 downwardlywith the lug 29 of the pawl 23 incontact therewith. In this position thelatch I8 onthe hand lever I0 may be actuated to pull the plunger awayfrom the teeth on the ratchet wheel I6 so that the hand lever may bemoved to the position shown in dotted outline in Fig. 3, whereupon thelatch may be liberated and the plunger I I permitted to engage one ofthe teeth on the ratchet wheel I6 and the sequence of movementsrepeated. 7

It is obvious that various changes may be resorted to in the form,construction and arrangement of the several parts without departing fromthe spirit and scope of my invention; and hence, I do not intend to belimited to the details herein shown and described, except as they may beincluded in the claims.

What I claim is:

1. In a hoisting apparatus, a rotatable main shaft for carrying theload, a hanger for supporting one end of said shaft, means on saidhanger for actuating the shaft, said means comprising a gear fixed onthe main shaft, a short shaft journaled in the hanger and having apinion secured on one end'in position to mesh with said gear, a brakedrum and a ratchet wheel fixed on the other end of said short shaft, aband surrounding said drum and having one end secured to the hanger, apawl pivoted on the hanger in position to normally engage said ratchetwheel, an oscillatable hand lever fulcrurned on and depending from theshort shaft, a plunger longitudinally slidable in said hand lever andadapted to coact with the ratchet wheel, whereby the movement of thehand lever and plunger will control the actuation of the main shaft, anda rock lever pivoted on the hanger and having its inner end arranged toengage the pawl to lift it awa; from the ratchet wheel, said inner endalso being disposed to support the free end of the band, whereby thedownward movement of the outer end of the rock lever will simultaneouslydisengage the pawl from the ratchet wheel and bring the band intoengagement with the drum, while the movement of the hand lever andplunger will control the actuation of the main shaft'to lift or lowerthe load. 0 2. In a hoisting apparatus, a rotatable main shaft forcarrying the load, a hanger for supporting one end of said shaft, meanson said hanger for actuating the shaft, said means comprising a gearfixed on the main shaft, a short shaft journaled in the hanger andhaving a pinion secured on one end in position to mesh with said gear, abrake drum and a ratchet wheel fixed on the other end of said shortshaft, a band surrounding said drum and having one end secured to thehanger, a spring actuated pawl pivoted on the hanger in position tonormally engage said ratchet wheel, an oscillatable hand leverfulcrurned on and depending from the short shaft, a spring pressedplunger longitudinally slidable in said hand lever and adapted to coactwith the ratchet wheel, whereby the movement of the hand lever andplunger will control the actuation of the main shaft, and a rock leverpivoted on the hanger and having its inner end arranged to engage thepawl to lift it away from the ratchet wheel, said inner end also beingdisposed to support the free end of the band, whereby the downwardmovement of the outer end of the rock lever will simultaneouslydisengage the 5.

pawl from the ratchet wheel and bring the band into engagement with thedrum, while the movement of the hand lever and plunger will control theactuation of the main shaft to lift or lower the load. 40

3. In a hoisting apparatus, a rotatable main shaft for carrying theload, a hanger for supporting one end of said shaft, means on saidhanger for actuating the shaft, said means comprising a gear fixed onthe main shaft, a short shaft journaled in the hanger and having apinion secured on one end in position to mesh with said gear, a brakedrum and a ratchet wheel fixed on the other end of said short shaft, aband surrounding said drum and having one end secured to the hanger, aspring actuated pawl pivoted on the hanger in position to normallyengage said ratchet wheel, an oscillatable hand lever fulcrumed on anddepending from the short shaft, a spring pressed plunger longitudinallyslidable in said hand lever and adapted to coact with the ratchet wheel,a latch operable on the handle to move the plunger away from the ratchetwheel, whereby the movement of the hand lever and plunger will controlthe actuation of the main shaft,and a rock lever pivoted on the hangerand having its inner end arranged to engage the pawl to lift it awayfrom the ratchet wheel, said inner end also being disposed to supportthe free end of the band, whereby the downward movement of the outer endof the rock lever will simultaneously disengage the pawl from theratchet wheel and bring the band into engagement with the drum, whilethe movement of the hand lever and plunger will control the actuation ofthe main shaft to lift or lower the load.

' JOHN W. LOOSCHEN.

